Re: Why are more channels in HD in the Spectrum TV App than on the actual service?

My guess is that its a bandwidth issue.

Each linear HD channel consumes much more bandwidth than a SD channel. Only so much of the coaxial pipe can be dedicated to linear video programming, with the rest dedicated to data / internet. Everytime Spectrum increases internet speeds, HD channels will go away. Only the most popular (highest rated) channels will be sent to homes in HD.